May 2024
Intermediate to advanced
534 pages
17h 58m
English
book
8051 Microcontroller, Internals, Instructions, Programming and Interfacing, 2nd Edition
by Subrata Ghoshal
Content preview from 8051 Microcontroller, Internals, Instructions, Programming and Interfacing, 2nd Edition
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131
10.2 | BOOLEAN DATA LOADING AND MOVEMENT
Table 10.2 Variations of CLR instruction
Instruction Function
CLR C Clear carry
CLR bit Clear addressed bit
Figure 10.2 Execution of CLR C instruction
Instruction: CLR C
Bytes: 1
Cycles: 1
CY
PSW
0202
0203 31
30
2F
0C
0B
0A
09
08
07
06
05
04
03
02
01
00
0201
0200
01FF
01FE
Reg. A
0
Reg. B F0H
E0H
01FD
01FC
01FB
01FA
01F9
01F8
01F7
01F6
01F5
D0H
AC F0 RS1
0
RS0
0
OV - P
Flags Affected: CY
Opcode: C3H
Reg.
Bank
#0
Ban
k
#0
Data MemoryProgram Memory
SP
07H 81H
DPH
DPTR
PC
= PC+1
DPL
C3
01FE
10.2.1 | CLR Instruction
Table 10.2 lists the variations of CLR instruction. Possible operand locations in this case would be either the
CY fl ag or any addressable bit. is instr ...
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